Overseas Deputation Agreement

We are software company in India and need a Overseas deputation agreement template draft to be signed by our employees in India who will be deputed in foreign countires as and when required or by consultants who are engaged overseas and we need to pay allowance. Basically the agreement must include any standard conditions for such agreement and mainly include provisions to include base salary in India and Overseas Allowance as a dollar rate. Both will be paid in India.